1 answer

None -- you have made three fundamental errors in all three sentences.

(A) You must always, without exception, capitalize the first letter of the first word in a sentence. (B) You must always, again without exception, capitalize the personal pronoun "I".

(C) You must always, I repeat always, end a sentence with punctuation -- a period, a question mark, or an exclamation point.

Those basic errors aside, #1 is correct. #2 is also correct but seldom used (it makes an elliptical reference to the subject "I"), and #3 would be correct if a comma were added after apple. (There is some debate whether #2 also requires a comma in the same place, but most style manuals say no.)

Well .... you've still not capitalized or punctuated your sentences! #a is correct (but a bit awkward) and #b would be correct if you add a comma after car. If you wish more, please start a new question.